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Stockholders' Equity (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Equity [Abstract] |  |
Schedule of assumptions used in Black-Scholes pricing model to estimate the fair value of the options granted |
|  | Nine Months Ended |
|  | September 30, |
|  | 2018 |
Expected volatility |  |  | 159.0-167.0 | %
Expected life of option (years) |  |  | 5.2-6.3 |
Risk free interest rate |  |  | 2.3-2.9 | %
Expected dividend yield |  |  | 0.0 | %
|  | December 31, |
|  | 2017 |  |  | 2016 |
Expected volatility |  |  | 116.1-159.0 | % |  |  | 76.6-139.2 | %
Expected life of option |  |  | 5.0-7.0 |  |  |  | 5.5 |
Risk free interest rate |  |  | 1.7-2.2 | % |  |  | 1.1-1.8 | %
Expected dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Schedule of stock option activity |
|  |  |  |  | Weighted |
|  | Number of |  |  | Average Exercise |
|  | Options |  |  | Price |
Stock Options: |  |  |  |  |  |
Outstanding at January 1, 2018 |  |  | 980,588 |  |  | $ | 5.02 |
Granted |  |  | 120,130 |  |  |  | 5.95 |
Exercised, during period |  |  | (6,363 | ) |  |  | 4.43 |
Expired or canceled, during the period |  |  | (1,429 | ) |  |  | 42.35 |
Forfeited, during the period |  |  | (25,399 | ) |  |  | 4.45 |
Outstanding at September 30, 2018 |  |  | 1,067,527 |  |  | $ | 5.10 |
Exercisable at September 30, 2018 |  |  | 559,232 |  |  | $ | 6.05 |
|  | Number of Options |  |  | Weighted Average Exercise Price |
Outstanding at January 1, 2017 |  |  | 573,110 |  |  | $ | 6.94 |
Granted |  |  | 611,522 |  |  |  | 3.75 |
Expired or canceled, during the period |  |  | (191,027 | ) |  |  | 6.64 |
Forfeited, during the period |  |  | (13,017 | ) |  |  | 6.00 |
Outstanding at December 31, 2017 |  |  | 980,588 |  |  | $ | 5.02 |
Exercisable at December 31, 2017 |  |  | 448,890 |  |  | $ | 8.36
Schedule of stock-based compensation expense |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Cost of revenue |  | $ | 529 |  |  | $ | 333 |  |  | $ | 1,870 |  |  | $ | 3,279 |
Sales and marketing expense |  |  | 981 |  |  |  | 1,039 |  |  |  | 3,202 |  |  |  | 908 |
Product development expense |  |  | 14,380 |  |  |  | 3,396 |  |  |  | 33,640 |  |  |  | 36,628 |
General and administrative expense |  |  | 211,818 |  |  |  | 148,714 |  |  |  | 610,848 |  |  |  | 436,206 |
Total stock compensation expense |  | $ | 227,708 |  |  | $ | 153,482 |  |  | $ | 649,560 |  |  | $ | 477,021 |
|  | Year ended December 31, |
|  | 2017 |  |  | 2016 |
Cost of revenue |  | $ | 4,302 |  |  | $ | 117,147 |
Sales and marketing expense |  |  | 1,784 |  |  |  | - |
Product development expense |  |  | 166,783 |  |  |  | - |
General and administrative expense |  |  | 665,556 |  |  |  | 50,599 |
Total stock-based compensation expense |  | $ | 838,425 |  |  | $ | 167,746 |
Schedule of restricted stock award activity |
|  |  |  |  | Weighted |
|  |  |  |  | Average |
|  | Number of |  |  | Grant Date |
|  | RSAs |  |  | Fair Value |
Restricted Stock Awards: |  |  |  |  |  |
Unvested at January 1, 2018 |  |  | 158,571 |  |  | $ | 20.29 |
Granted |  |  | - |  |  |  | - |
Expired or canceled, during the period |  |  | - |  |  |  | - |
Forfeited, during the period |  |  | - |  |  |  | - |
Unvested at September 30, 2018 |  |  | 158,571 |  |  | $ | 20.29 |
|  | Number of Restricted Stock Awards |  |  | Weighted Average Grant Date Fair Value |
Outstanding at January 1, 2017 |  |  | 264,286 |  |  | $ | 20.29 |
Granted |  |  | - |  |  |  | - |
Forfeited or canceled, during the period |  |  | (43,405 | ) |  |  | 20.29 |
Vested |  |  | (62,310 | ) |  |  | 20.29 |
Outstanding at December 31, 2017 |  |  | 158,571 |  |  | $ | 20.29 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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